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[Groff] Re: CMYK <-> RGB
From: |
Werner LEMBERG |
Subject: |
[Groff] Re: CMYK <-> RGB |
Date: |
Fri, 05 Oct 2001 20:00:10 +0200 (CEST) |
> r = ((maxval-k)*(maxval-c))/maxval;
> g = ((maxval-k)*(maxval-m))/maxval;
> b = ((maxval-k)*(maxval-y))/maxval;
>
> r = maxval - min(maxval, c*(maxval-k)/maxval + k);
> g = maxval - min(maxval, m*(maxval-k)/maxval + k);
> b = maxval - min(maxval, y*(maxval-k)/maxval + k);
>
> These are the same. Proof:
>
> [...]
Thanks a lot for the analysis!
Werner
- [Groff] CMYK <-> RGB, Werner LEMBERG, 2001/10/05
- [Groff] Re: CMYK <-> RGB, Keith Packard, 2001/10/05
- Re: [Groff] Re: CMYK <-> RGB, Ralph Corderoy, 2001/10/05
- Re: [Groff] Re: CMYK <-> RGB, Tadziu Hoffmann, 2001/10/05
- Re: [Groff] Re: CMYK <-> RGB, Keith Packard, 2001/10/05
- Re: [Groff] Re: CMYK <-> RGB, Larry Jones, 2001/10/05
- Re: [Groff] Re: CMYK <-> RGB, Ralph Corderoy, 2001/10/05
- Re: [Groff] Re: CMYK <-> RGB, Larry Jones, 2001/10/05
- Re: [Groff] Re: CMYK <-> RGB, Larry Jones, 2001/10/05
- [Groff] Re: CMYK <-> RGB,
Werner LEMBERG <=
Re: [Groff] CMYK <-> RGB, Ralph Corderoy, 2001/10/05